print python key

You need to call the methods to get anything useful: print (prices.keys()) However, in python3.x, this still isn't particularly nice for printing since it'll print extra junk that you probably don't want to see. You might want to consider usin

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Python是一款簡單強大又好用的動態語言,在國外已經流行了十幾年。Python擁有更高的時效性,可以讓您的開發週期更短,並讓您的生產力提升。 簡單易學,並有內建的各種現成的模組 ...

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